third_party/WebKit/LayoutTests/fast/dom/html-collections-named-getter-mandatory-arg.html

   1 <!DOCTYPE html>
   2 <html>
   3 <body>
   4 <script src="../../resources/js-test.js"></script>
   5 <a id="testLink"></a>
   6 <script>
   7 description("This tests verifies that HTMLCollection.namedItem() argument is mandatory");
   8
   9 var testLink = document.getElementById("testLink");
  10 var htmlCollection = document.getElementsByTagName("a");
  11 shouldBe("htmlCollection.__proto__", "HTMLCollection.prototype");
  12 shouldBe("htmlCollection.length", "1");
  13 shouldBe("htmlCollection.namedItem('testLink')", "testLink");
  14 shouldThrow("htmlCollection.namedItem()", '"TypeError: Failed to execute \'namedItem\' on \'HTMLCollection\': 1 argument required, but only 0 present."');
  15 </script>
  16 </body>
  17 </html>